http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. A new study examining data on incidence trends, mortality rates and survival rates from the National Cancer Institute's Surveillance Epidemiology and End Results (SEER) cancer registries indicates that the incidence of liver cancer in the United States tripled between 1975 and 2005. http://www.physorg.com/news154191005.html Medicine & Health Wed, 18 Feb 2009 14:50:45 EST news154191005 A well-off professional who smokes has a much lower survival rate than a non-smoking low-paid worker of the same sex concludes new research published today on bmj.com. http://www.physorg.com/news154122231.html Medicine & Health Tue, 17 Feb 2009 19:44:24 EST news154122231 Elderly patients who undergo surgery at teaching-intensive hospitals have better survival rates than at nonteaching hospitals, but these better survival rates apparently occur in white patients, not black patients. http://www.physorg.com/news154025462.html Medicine & Health Mon, 16 Feb 2009 16:51:17 EST news154025462 In Alzheimer's disease the brain accumulates a molecule called A-beta that can be quite toxic to brain cells. Many researchers believe that finding ways to clear A-beta may be a key to treatment or prevention of Alzheimer's disease. http://www.physorg.com/news153992637.html Medicine & Health Mon, 16 Feb 2009 07:48:57 EST news153992637 Paleontologists can still hear the echo of the death knell that drove the dinosaurs and many other organisms to extinction following an asteroid collision at the end of the Cretaceous Period 65 million years ago. http://www.physorg.com/news153065721.html Other Sciences Thu, 05 Feb 2009 14:16:05 EST news153065721 Postmenopausal women who take combined estrogen plus progestin menopausal hormone therapy for at least five years double their annual risk of breast cancer, according to new analyses from a major study that clearly establishes a link between hormone use and breast cancer, Stanford researchers say. The multi-center study also found that women on hormones can quickly reduce their risks of cancer simply by stopping the therapy. http://www.physorg.com/news152993944.html Medicine & Health Wed, 04 Feb 2009 18:19:34 EST news152993944 (PhysOrg.com) -- A family sociologist at the University at Buffalo says this month's murder-suicides involving a family of four in Ohio and a family of five in California may be "just the tip of the iceberg." http://www.physorg.com/news152548038.html Other Sciences Fri, 30 Jan 2009 14:27:35 EST news152548038 Anxiety and depression before and during fertility treatment does not affect the likelihood of a woman becoming pregnant or of her cancelling her treatment, according to a study published in Europe's leading reproductive medicine journal, Human Reproduction on Thursday 29 January. http://www.physorg.com/news152429829.html Medicine & Health Thu, 29 Jan 2009 05:37:27 EST news152429829 Hospitals in states where Medicaid does not pay for routine male circumcision are only about half as likely to perform the procedure, and this disparity could lead to an increased risk of HIV infection among lower-income children later in life, according to a UCLA AIDS Institute study. http://www.physorg.com/news152364043.html Medicine & Health Wed, 28 Jan 2009 11:21:08 EST news152364043 States that dropped regulations overseeing the performance of two common heart procedures showed no increase in death rates, according to researchers at Baylor College of Medicine (BCM), Rice University and Duke University Medical Center. The findings are available online in the journal Health Services Research. http://www.physorg.com/news152279091.html Medicine & Health Tue, 27 Jan 2009 11:45:18 EST news152279091 (PhysOrg.com) -- A new study led by the U.S. Geological Survey and involving the University of Colorado at Boulder indicates tree deaths in the West's old-growth forests have more than doubled in recent decades, likely from regional warming and related drought conditions. http://www.physorg.com/news151856202.html Space & Earth Thu, 22 Jan 2009 14:17:18 EST news151856202 In the year following Hurricane Katrina, the health of survivors 65 and over declined nearly 4 times that of a national sample of older adults not affected by the disaster, according to a study led by researchers at the Johns Hopkins Bloomberg School of Public Health. The August 2005 storm was one of the most powerful and deadliest hurricanes in U.S. history. Hurricane Katrina displaced thousands and severely disrupted access to health care. Researchers monitored enrollees of a New Orleans-area managed care organization and found morbidity rates increased 12.6 percent compared with 3.4 percent nationwide. The results are published in the January issue of The American Journal of Managed Care. http://www.physorg.com/news151855538.html Medicine & Health Thu, 22 Jan 2009 14:06:45 EST news151855538 The association between tobacco smoke and cancer deaths - beyond lung cancer deaths - has been strengthened by a recent study from a UC Davis researcher, suggesting that increased tobacco control efforts could save more lives than previously estimated. http://www.physorg.com/news151770432.html Medicine & Health Wed, 21 Jan 2009 14:30:40 EST news151770432 Researchers from Menzies School of Health Research in Darwin, Australia have found that the soil bacterium Burkholderia pseudomallei, which causes the emerging infectious disease melioidosis in humans and animals, is associated with land management changes such as livestock husbandry or residential gardening. The study, published January 20 in the open-access journal PLoS Neglected Tropical Diseases, sheds light on the environmental occurrence of this bacterium in the soil. http://www.physorg.com/news151737685.html Medicine & Health Wed, 21 Jan 2009 05:22:05 EST news151737685 A Johns Hopkins study finds that HIV-positive kidney transplant recipients could have the same one-year survival rates for themselves and their donor organs as those without HIV, provided certain risk factors for transplant failure are recognized and tightly managed. http://www.physorg.com/news151609761.html Medicine & Health Mon, 19 Jan 2009 17:51:01 EST news151609761 Disparities in survival among black patients diagnosed with early-stage lung cancer are not seen when patients are recommended appropriate treatment, according to a report in the January issue of Archives of Surgery, one of the JAMA/Archives journals. http://www.physorg.com/news151609530.html Medicine & Health Mon, 19 Jan 2009 17:47:50 EST news151609530 For select patients, hospital at home treatment produces similar outcomes to inpatient care at similar or lower costs, found a study by researchers from the United Kingdom and Italy to be published in CMAJ. http://www.physorg.com/news151608790.html Medicine & Health Mon, 19 Jan 2009 17:33:47 EST news151608790 Scientists have developed a ground-breaking method for testing the quality of a sperm before it is used in IVF and increase the chances of conception. http://www.physorg.com/news151595395.html Medicine & Health Mon, 19 Jan 2009 13:51:13 EST news151595395 (PhysOrg.com) -- Even though scientists have successfully sequenced the human genome, they still lack a clear picture of exactly how coding and non-coding DNA sequences function together, or how genomes evolve over time. This has been particularly problematic for scientists who use genetic similarities to characterize evolutionary divergence. Historically, the processes of genetic evolution and genome degradation have been difficult to study due to technological limitations and lack of accurate historical records for species. http://www.physorg.com/news151260626.html Biology Thu, 15 Jan 2009 16:50:26 EST news151260626 As many as one million working-age men died due to the economic shock of mass privatisation policies followed by post-communist countries in the 1990s, according to a new study published in The Lancet. http://www.physorg.com/news151254022.html Medicine & Health Thu, 15 Jan 2009 15:00:22 EST news151254022 Counselling via the phone and internet can help weight management in overweight individuals, according to a Dutch study published in the open access journal, BMC Public Health. http://www.physorg.com/news150695972.html Medicine & Health Fri, 09 Jan 2009 03:59:32 EST news150695972 Obesity affects health in several ways, but new research shows obesity can have minimal impact on ovarian cancer survival. A study by researchers at the University of Alabama at Birmingham (UAB) Comprehensive Cancer Center found ovarian cancer survival rates are the same for obese and non-obese women if their chemotherapy doses are closely matched to individual weight. http://www.physorg.com/news149768781.html Medicine & Health Mon, 29 Dec 2008 10:26:21 EST news149768781 (PhysOrg.com) -- Lesbian, gay, and bisexual (LGB) teens in British Columbia are at a higher risk of pregnancy because of discrimination, sexual abuse and harassment compared to heterosexual teens, according to a University of British Columbia study. http://www.physorg.com/news148665142.html Medicine & Health Tue, 16 Dec 2008 15:52:22 EST news148665142 A study in the Dec. 15 issue of the Journal of Clinical Sleep Medicine shows that after a one-hour delay of school start times, teens increased their average nightly hours of sleep and decreased their "catch-up sleep" on the weekends, and they were involved in fewer auto accidents. http://www.physorg.com/news148543709.html Medicine & Health Mon, 15 Dec 2008 06:08:29 EST news148543709 (PhysOrg.com) -- Cigarette smoking rates among American teens in 2008 are at the lowest levels since at least as far back as the early 1990s, according to the Monitoring the Future study based at the University of Michigan, which has been surveying national samples of 8th-, 10th-, and 12th-grade students each year since 1991. http://www.physorg.com/news148229935.html Medicine & Health Thu, 11 Dec 2008 14:58:55 EST news148229935 A new report from the nation's leading cancer organizations shows that, for the first time since the report was first issued in 1998, both incidence and death rates for all cancers combined are decreasing for both men and women, driven largely by declines in some of the most common types of cancer. The report notes that, although the decreases in overall cancer incidence and death rates are encouraging, large state and regional differences in lung cancer trends among women underscore the need to strengthen many state tobacco control programs. The findings come from the "Annual Report to the Nation on the Status of Cancer, 1975-2005, Featuring Trends in Lung Cancer, Tobacco Use and Tobacco Control", online Nov. 25, 2008, and appearing in the Dec. 2, 2008, Journal of the National Cancer Institute. http://www.physorg.com/news146849658.html Medicine & Health Tue, 25 Nov 2008 15:34:18 EST news146849658 In low-transmission areas, if widely used, artemisinin combination therapy (ACT) may reduce malaria transmission as effectively as the widespread use of insecticide-treated bed nets, says a new study published in next week's PLoS Medicine. http://www.physorg.com/news146816301.html Medicine & Health Tue, 25 Nov 2008 06:18:21 EST news146816301 Online support communities for high survival rate cancers contain a greater amount of emotional support content than online support communities for cancers with low survival rates, according to a new study from the University of Michigan Health System and the VA Ann Arbor Healthcare System. http://www.physorg.com/news146230873.html Medicine & Health Tue, 18 Nov 2008 11:41:13 EST news146230873 A new UCLA School of Nursing study is the first to reveal the devastating consequences of smoking on the nursing profession. Published in the November -December edition of the journal Nursing Research, the findings describe smoking trends and death rates among U.S. nurses and emphasize the importance of supporting smoking cessation programs in the nursing field. http://www.physorg.com/news145800798.html Medicine & Health Thu, 13 Nov 2008 12:13:18 EST news145800798 (PhysOrg.com) -- When Cornell economists noticed that autism diagnosis rates were higher in some states, they questioned whether local weather could be playing a role. http://www.physorg.com/news145639677.html Medicine & Health Tue, 11 Nov 2008 15:27:57 EST news145639677